Use your mobile device to unlock or edit a file that another user has locked for editing.

Warning: Never enable macros in a Microsoft 365 file unless you're sure you know what those macros do and you want the functionality they provide. You don't need to enable macros to view or edit the file.

See how to work with ActiveX controls in your files, changing their settings, and how to enable or disable them by using the Message Bar and the Trust Center. You can also learn more about ActiveX …

If you later decide you want to unblock a sender, use Junk Email Filters to change which messages you see. In the Enter an e-mail address or Internet domain name to be added to the list box, enter the …

If you need to receive a blocked file, ask the sender to upload the file to OneDrive or SharePoint and send you a link. Once you receive the link, you can open the file location and download the file.

Removing a password from a document is a simple process, but you have to know the original password. Open the document and enter its password. Go to File > Info > Protect Document > …

Find out how you can unlock an Excel spreadsheet when you are locked out of an Excel file by yourself or by another user.

How to lock cells in Excel to protect your data. You can also unlock a range of cells and grant permissions to others to edit.

Click Enable Content on the business bar if you want to unblock the external content. To learn how to make a secure decision before clicking an option, see the next section.

Learn how to unblock a Microsoft 365 file or presentation that was blocked for security reasons.